Induction of Pyrophosphate:Fructose 6-Phosphate 1-Phosphotransferase by Anoxia in Rice Seedlings.

Mertens, Emmanuel;Larondelle, Yvan;Hers, Henri-Géry
(1990) Plant physiology — Vol. 93, n° 2, p. 584-587 (1990)

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  • Mertens, Emmanuel
    Author
  • Larondelle, Yvan
    Author
  • Hers, Henri-Géry
    Author
Abstract
Rice (Oryza sativa) seeds were imbibed for 3 days and the seedlings were further incubated for 8 days in the presence of either air or nitrogen. In aerobiosis, the specific activity of pyrophosphate:fructose 6-phosphate 1-phosphotransferase and that of the ATP-dependent phosphofructokinase increased about fourfold. In anaerobiosis, the specific activity of ATP-dependent phosphofructokinase remained stable, whereas that of pyrophosphate:fructose 6-phosphate 1-phosphotransferase increased as much as in the presence of oxygen and there was also a fourfold increase in the concentration of fructose 2,6-bisphosphate, a potent stimulator of that enzyme. These data suggest a preferential involvement of pyrophosphate:fructose 6-phosphate 1-phosphotransferase rather than of ATP-dependent phosphofructokinase in glycolysis during anaerobiosis.
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Mertens, E., Larondelle, Y., & Hers, H.-G. (1990). Induction of Pyrophosphate:Fructose 6-Phosphate 1-Phosphotransferase by Anoxia in Rice Seedlings. Plant physiology, 93(2), 584-587. https://doi.org/10.1104/pp.93.2.584 (Original work published 1990)